B1445 Buick Code - Control Module Voltage Output Circuit
Quick Answer
The Body Control Module (BCM) controls the Retained Accessory Power Relay 1 and Retained Accessory Power Relay 2 through their control circuits by applying a voltage to the Retained Accessory Power Relay coil control circuit. Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1445 Buick indicates Control Module Voltage Output Circuit.
- Common causes
- Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1445 Buick Description
What are the Possible Causes of the DTC B1445 Buick?
- Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2
- Retained Accessory Power Relay harness is open or shorted
- Retained Accessory Power Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1445 Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1445 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1445 Buick Code
1. What does the OBDII code B1445 mean on a Buick?
The code B1445 indicates an issue with the Control Module Voltage Output Circuit, which typically refers to a malfunction in the module's ability to regulate or send proper voltage.
2. What are the common symptoms of code B1445 on a Buick?
Symptoms may include warning lights on the dashboard, erratic behavior of electrical components, or failure of systems like HVAC or lighting.
3. What causes the B1445 code to appear on a Buick?
Common causes include a faulty control module, damaged wiring or connectors, or an issue with the power supply to the module.
4. Can I continue driving my Buick with code B1445?
While the vehicle may still be drivable, ignoring this code can lead to further electrical issues or failure of critical systems, so timely repairs are recommended.
5. How can I diagnose the B1445 code on my Buick?
Start by inspecting the wiring and connectors for damage or corrosion, then test the control module’s voltage output using a multimeter.
6. Is a faulty control module the only cause of the B1445 code?
No, the issue could also stem from damaged wiring, poor connections, or issues with the power or ground circuits.
7. How do I fix the B1445 code on a Buick?
Repairs may involve replacing or repairing damaged wiring, cleaning corroded connectors, or replacing the faulty control module.
8. How much does it cost to repair the B1445 code on a Buick?
Costs can vary depending on the issue but usually range from $100 for minor wiring repairs to $500 or more if a control module replacement is necessary.
9. Can a dead battery cause the B1445 code on a Buick?
Yes, a weak or dead battery can lead to voltage irregularities, which may trigger the B1445 code.
10. Do I need a professional mechanic to fix code B1445 on my Buick?
While some basic checks like inspecting wiring can be done at home, advanced diagnostics and module replacement are best handled by a professional.
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